Cable operated piston brake for bicycles
US6220399A · kind A · utility
Inventors
Key dates
| Filing date | Aug 25, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Aug 25, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62L3/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A piston (1) slidably mounted in a case (14), with an actuator cable (22) routed around a first cable guide (15) on the brake case, thence beside the piston to a second cable guide (6) on the end of the piston, which redirects it 180 degrees to return beside the piston to a cable end holder (12) on the case. The actuator cable runs parallel to the piston on both sides, transferring twice its tension to the piston. A cam (60) is provided for full control of the brake gain relative to the tension of the main cable from the hand lever. This adapts the brake to a given hand lever, and provides both fast braking response and high power via a variable gain curve on each stroke. Floating pads are provided for automatic toe. All brake position adjustments relative to the rim are easy and are independent of each other. Quick means are provided for changing the tire and pads, and these operations do not reset the brake position adjustments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.